Company license removes the watermark and allow any license for output images. However, you may only use this license if you're a company with less than 500 employees.
This essentially means:
You may use Pixelator-generated images for any project, including commercial.
All employees of the company may use Pixelator for any of the company's projects.
You don't have to give any credits to Pixelator or anyone else.
You may not embed / incorporate Pixelator inside another software or service.
You may not offer Pixelator as a service to any third party.
You may not resell or redistribute Pixelator.
This license is issued for a specific company and may not be used personally / for other companies.
If your company grows to 501 employees or more, you'll need to contact author and get a special license.
Please be responsible with your source materials - do not use any images or resources that might violate someone else's copyrights.